Part Numbers

RXW-THC-900RXW-THC-868RXW-THC-922RXW-THC-921

HOBOnet Temp/RH Sensor

Solar Powered

$300.00 USD
A solar-powered wireless sensor that works with the HOBOnet system to monitor air temperature and relative humidity.

Important Information

A complete system requires at least one HOBO RX3000 Remote Monitoring Station, a HOBOnet Wireless Manager, and a HOBOnet Wireless Sensor, OR one HOBO MicroRX Station (which has an integrated HOBOnet Wireless Manager) and a HOBOnet Wireless Sensor. HOBOnet Wireless Repeaters (RXW-RPTR-xxx or RXW-RPTR-B-xxx) can be added to extend the range.

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Overview

A solar-powered wireless sensor that works with the HOBOnet system to monitor air temperature and relative humidity. HOBOnet wireless sensors communicate data directly to the HOBO RX3000 or the HOBO MicroRX station, or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset's innovative cloud software platform.

Features


Sensor Features

  • High accuracy: ± 0.2°C (± 0.36°F) and ± 2.5% RH
  • Robust RH sensor withstands extended use in high-humidity environments

Wireless Features

  • 900 MHz wireless mesh self-healing technology
  • 450 to 600 meter (1,500 to 2,000 feet) wireless range and up to five hops
  • Up to 50 wireless sensors or 336 data channels per HOBO RX station
  • Simple button-push to join the HOBOnet wireless network
  • Onboard memory to ensure no data loss
  • Powered by rechargeable AA batteries and built-in solar panel

Specifications

Temperature Sensor

Measurement Range
-40°C to 75°C
-40°F to 167°F
Accuracy
±0.25°C from -40° to 0°C
±0.45°F from -40° to 32°F
±0.20°C from 0° to 70°C
±0.36°F from 32° to 158°F
±0.25°C from 70° to 75°C
±0.45°F from 158° to 167°F
Resolution
0.02°C
0.036°F
Drift
<0.01°C per year
0.018°F per year
Response Time (typical, to 90% of change)
With RS3-B solar radiation shield: 6 minutes, 30 seconds in air moving 1 m/sec

RH Sensor

Measurement Range
0–100% RH at -40° to 75°C (-40° to 167°F); exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1%
Accuracy
±2.5% from 10% to 90% RH typical to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
Resolution
0.01% RH
Drift
<1% per year typical
Response Time (typical, to 90% of change)
With RS3-B solar radiation shield: 30 seconds in air moving 1 m/sec

Wireless Mote

Operating Temperature Range
-25° to 60°C with rechargeable batteries
-13° to 140°F with rechargeable batteries
-40° to 70°C with lithium batteries
-40° to 158°F with lithium batteries
Radio Power
12.6 mW non-adjustable
+11 dBm non-adjustable
Transmission Range
Reliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high
Wireless Data Standard
IEEE 802.15.4
Radio Operating Frequencies
RXW-THC-922: 916–924 MHz
Modulation Employed
OQPSK (Offset Quadrature Phase Shift Keying)
Data Rate
Up to 250 kbps, non-adjustable
Duty Cycle
<1%
Maximum Number of Motes
Up to 50 wireless sensors or 336 data channels per one HOBO RX station
Logging Rate
1 minute to 18 hours
Number of Data Channels
3
Battery Type/Power Source
Two AA 1.2V rechargeable NiMH batteries, powered by built-in solar panel or two AA 1.5 V lithium batteries for operating conditions of -40° to 70°C (-40° to 158°F)
Battery Life
With NiMH batteries: Typical 3–5 years when operated in the temperature range -20° to 40°C
see Deployment and Mounting), operation outside this range will reduce the battery service life
Memory
16 MB
Dimensions
Cable length: 2 m (6.56 ft)
Weight
Sensor and cable: 110 g (3.88 oz);
Materials
Mote: PCPBT, silicone rubber seal
Environmental Rating
Mote: IP67, NEMA 6
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CE Compliance Mark
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FCC Compliance Mark
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Taiwan Compliance Mark
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Australia New Zealand Compliance Mark

Compatible items

Solar Radiation Shields

RS3-B
$75.00 USD

Tripod Parts, Kits and Masts

M-TPA-KIT
$369.00 USD
M-TPB-KIT
$259.00 USD
M-TPA
$209.00 USD
M-TPB
$79.00 USD
M-MPA
$69.00 USD
M-MPB
$49.00 USD

NIST Setup & Certifications

NIST-RH-ONEPOINT
$116.00 USD
NIST-RH-THREEPOINT
$182.00 USD
NIST-TEMP-POINT
$51.00 USD

Batteries

HWSB-LI
$26.00 USD
HRB-NiMH-2
$12.00 USD

Grounding Wires

M-GKA
$79.00 USD
CABLE-MICRO-G
$14.00 USD

Compliance Certificates

COMPLIANCE CERT
$30.00 USD

Web-based Monitoring Systems - via remote communication

Communications

RXMOD-RXW-xxx
$199.00 USD
RXMOD-RXW-900
$199.00 USD
RXMOD-RXW-868
$199.00 USD
RXMOD-RXW-922
$199.00 USD
RXMOD-RXW-921
$199.00 USD
RXW-RPTR-xxx
$159.00 USD
RXW-RPTR-900
$159.00 USD
RXW-RPTR-868
$159.00 USD
RXW-RPTR-922
$159.00 USD
RXW-RPTR-921
$159.00 USD

Documents

RXW Temperature/RH Sensor (RXW-THC-xxx) Manual

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RXW Temperature/RH Sensor (RXW-THC-xxx) Quick Start

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Reviews

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